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Recent Patents on Mechanical Engineering
ISSN (Print): 2212-7976
ISSN (Online): 1874-477X
VOLUME: 3
ISSUE: 2
DOI: 10.2174/2212797611003020106









Method, Models and Tools for CAD-CAE Integration

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Author(s): Okba Hamri, Jean-Claude Leon, Franca Giannini and Bianca Falcidieno
Pages 106-130 (25)
Abstract:
Computer Aided Design (CAD) and Computer Aided Engineering (CAE) are two significantly different disciplines, and hence they require different shape models representations. As a result, models generated by CAD systems often need to be submitted to shape transformations for Finite Element Analysis (FEA). In this paper, a new approach is proposed to ease integration between CAD and CAE also outlining some patents. It is based on new shape representation called mixed shape representation that supports simultaneously a B-Rep (manifold and non-manifold) and a polyhedral representation to create a robust link between the CAD and CAE environments. Both representations are maintained through the same topology description called the High Level Topology (HLT), which represents a common requirement for simulation model preparation. An innovative approach to FE model preparation based on the mixed representation is presented in this paper. Thus a set of necessary tools is associated to the mixed shape representation, which contributes to reduce, as much as possible, the time of a model preparation process.
Keywords:
CAD-CAE integration, FE model preparation, mixed shape representation, simplification feature, software architecture
Affiliation:
Department of Mechanical Engineering, University A. Mira 06000, Bejaia, Algeria.